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Diffstat (limited to 'boost/fusion/container/map/detail/cpp03/deref_data_impl.hpp')
-rw-r--r-- | boost/fusion/container/map/detail/cpp03/deref_data_impl.hpp | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/boost/fusion/container/map/detail/cpp03/deref_data_impl.hpp b/boost/fusion/container/map/detail/cpp03/deref_data_impl.hpp new file mode 100644 index 0000000000..7be6fd962a --- /dev/null +++ b/boost/fusion/container/map/detail/cpp03/deref_data_impl.hpp @@ -0,0 +1,49 @@ +/*============================================================================= + Copyright (c) 2009 Christopher Schmidt + + Distributed under the Boost Software License, Version 1.0. (See accompanying + file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) +==============================================================================*/ + +#ifndef BOOST_FUSION_CONTAINER_MAP_DETAIL_DEREF_DATA_IMPL_HPP +#define BOOST_FUSION_CONTAINER_MAP_DETAIL_DEREF_DATA_IMPL_HPP + +#include <boost/fusion/support/config.hpp> +#include <boost/fusion/iterator/value_of.hpp> +#include <boost/fusion/iterator/deref.hpp> +#include <boost/fusion/support/detail/access.hpp> +#include <boost/type_traits/is_const.hpp> +#include <boost/mpl/if.hpp> + +namespace boost { namespace fusion { namespace extension +{ + template <typename> + struct deref_data_impl; + + template <> + struct deref_data_impl<map_iterator_tag> + { + template <typename It> + struct apply + { + typedef typename result_of::value_of<It>::type::second_type data; + + typedef typename + mpl::if_< + is_const<typename It::seq_type> + , typename detail::cref_result<data>::type + , typename detail::ref_result<data>::type + >::type + type; + + BOOST_FUSION_GPU_ENABLED + static type + call(It const& it) + { + return fusion::deref(it).second; + } + }; + }; +}}} + +#endif |